Title :
Preparation of general single-ququart states using ultrafast spontaneous parametric down-conversion
Author :
Baek, So-Young ; Straupe, Stanislav S. ; Kulik, Sergei P. ; Kim, Yoon-Ho
Author_Institution :
Dept. of Phys., Pohang Univ. of Sci. & Technol., Pohang
Abstract :
We report an experiment on preparing general four-dimensional quantum states (ququart) using ultrafast-pumped frequency-nondegenerate spontaneous parametric down-conversion. All possible single-ququart states (mixed, pure, and intermediate states) can be prepared in our scheme.
Keywords :
high-speed optical techniques; optical frequency conversion; quantum optics; four-dimensional quantum states; single-ququart states; ultrafast spontaneous parametric down-conversion; Cryptography; Crystals; Frequency; Laser excitation; Optical retarders; Polarization; Pump lasers; Quantum entanglement; Quantum mechanics; Testing;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391559
